<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <input type="button" value="获取数据" id="btn">
    <script src="./node_modules/jquery/dist/jquery.min.js"></script>
    <script>
        $(function(){
            $("#btn").click(function(){
                $.ajax({
                    url:'./data.json',
                    type:'get',
                    dataType:'json'
                    // success:function(data){
                    //     console.log(data);
                    // }
                }).then(function(data){
                    console.log(data);
                })
                //promise可以在jquery中使用
            })
        })
    </script>
</body>
</html>